Woodworking machine



- imea C, F. ANDERSON ET AL ska a WOODWORKING MACHINE Filed Aug. 27. 1920 s Sheets-Sheet 1 map/8mm; Cami d5. 031d mm mm Mom. 14 mm;

- C. F. ANDERSON ET AL WOODWORKING MACHINE Filed Aug. 27 3 Sheets-Sheet 2 Cl woww CARL F. ANDERSON, OF BROOKFIELD, AND LESTERNV. KNAPP, 0F BER-WY'N, ILLINOIS,

ASSIGNORS, BY MESNE ASSIGNMENTS, TO GONLON CORPORATION, OF CIGERO, ILLI NOIS, A, CORPORATION OF ILLINOIS.

WOQDWORKING MACHINE.

Original application filed August 27,

1920, Serial No. 406,388. Divided and this application filed August 27, 1920. Serial No. 406,389.

To all whom it may concern:

Be it known that we, CARL F. ANDERSON and LESTER l/V. KNAPP, both citizens of the United States, residing at Brookfield, in the county of Cook and State of Illinois, and Berwyn, in the county of Cook and State of Illinois, respectively, have invented a certain new and useful Improvement in Woodworking Machines, ofwhich the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specie fication.

Our invention relates to wood working machines, "being a division of our co-pending application, Serial No. 406,388, filed August 27, 1920, covering improvements in wood working machines, in whicha blank is formed into a finished head, employed in the construction of rotating cylinders for washing machines.

Although our invention is adapted to perform an operation particularly upon a washing machine cylinder head, we do not intend to be limited thereto, as it is apparent and obvious that this operation may be extended to and embodied in machines for making other articles of analogous form, or even articles of dissimilar form, but which require the performance of substantially the same operation in whole or in part.

Generally in the construction of rotary cylinders, two head members are employed, and to these heads the slats are secured. The perimeter of the head members are usually circular or elliptical in configuration, which require that the surface of the slat, laid upon the perimeter of the head, should be concave, This prevents splitting or warping of the slat. The slats are so spaced upon. the heads that a spaced open ing is preferably maintained between adjacent slats, which provides for agitating of the washing fluid, augmented by the perforations in the slats. In the assembly of rotary cylinders, the spacing of the slats on the heads, so that a proper spaced opening between the slats is secured, presents a practical difficulty. Even, when the cylinder head is formed polygonal, as disclosed in our above mentioned co-pending application, and an individual perimetrical face the head, which at the sametime are properly spaced. Hence, much tedious labor in the assembly is eliminated.

Another aim of our invention is to provide a boring mechanism wherein the working elements can be quickly and easily adjusted for thepurpose of readily adapting the mechanism to different size heads, or heads of different characteristics.

The construction and operation of a pre ferred embodiment of our invention will be more readily understood from the following detail description taken in connection with the accompanying drawings, in which:

Figure 1 is a front elevational view of a machine embodying our invention;

Figure 2 is a transverse sectional view taken on line 22 of Figure 1, illustrating the part of a machine comprising our invention;

Figure 3 isla fragmentary sectional view illustrating the means employed for controlling the various positions of the head during the boring operation;

Figure 4 is a fragmentary sectional view of the same mechanism taken on adifferent plane, illustrating the releasing-device employed;

Figure 5 is a detail fragmentary section of the spring connection of the connecting rod of the reciprocating boring mechanism; Figure 6 is a detail side elevational view of the boring mechanism;

Figure 7 is a detail top plan view of the same;

Figure 8 is a sectional view taken on line 88 of Figure 6; T Figure 9 is a front elevational view of the cylinder head; and

Figure 10 is a side elevational view of the same, illustrating the nail or screw holes employed for securing the slats to the head.

tha

ipe. 1 5-and 'air pipes 16.

. scription,. so far as the described path, viz., polygonal.

By r ferring to .Figure 1i.it will be seen are shaped polygonal and. nail openings bored therein, means of. a cutter .knife controlled by a feeling cam andgroller, and a boring mechanism which performs the boring operation. The boring .operation is performed during the cutting operation and forms the nailor screw holes in the. lateral faces ofrthe. heads to receive the carrying brackets of the cylinders. We have deemed it'not essential to further show this mechanism as it has been fully .described and claimed in our co-p'ending'application.

x In order to clarify matters. a brief deshowing permits, will be given. The head clamp 10 suitably retains. the" blank 11 under pressure by means of the airchuck 12, which is operated by means of the lever 13 141 having communication with the supply chuck 12 by means of the v The air chuclrfunctions to provide translational movement to the movable plate 16 of the; head clamp '10 so. that the blank ll may be inserted'and'removed from Y the clamp 10.

r The cutter mechanism, not shown, is driven 17 by mean'sof "the pulley 18 and belt 19. This cutter mechanism isadvanced toward the projecting perimeter of the blank 11 by means of the lever 20 manually controlled" byfthe operator of the machine.

.The cutter knife of the cutter mechanismis adapted to travel the perimeter of the blank-in a pre- This is accomplished by the polygonalshaped cam 21 on thecla mp 10 which is adaptedto guide the travel of the cutter knife by engaging a feeling roller'on the cutter shaft; Thebor ing mechanism which bores the nail holes in the lateralfaces ofthe head comprises the drum'nr head- 25' adapted to;laterally .ad- Vance toward the'head clamp. .The drum 25 is rotated at a relativelyslow speed, .while the 'drills26carried thereby are driven at a relatively high speed- The drive for. the

, drills; 26 is taken directly from the power 5O shaft 17 by means of the pulley 27,belt 28 :andgear pulley 29.. The drive for thedrum 25 includes the power shaft.-1'(', countershaft 1 crating parts of the machine."

3O and driving shaft.31,- these shafts comprlsing inparta. doublegear reductionlz The supportingstructure for. carrylng this mechanism comprises the two. front luprights or legs 32+32,.andthe two rear-legs 331-33... .The front. legsLare joined together by means of the upper and'lowerI longitudinal timbers.3434 which areireinforced in the center by the post-35, servingxto support the power transmission mechanism and op- .The rearlegs are also .-joined..together by means ..of .the upper' and lower longitudinal timbers "we have shown our invention embodied in a'machine 1n which the cylinder heads controlling avalve from the ma-inpower shaft 3636. The front and rear units are joined together at each end by the upper and lower cross timbers 37 and 38 respectively and the intermediate bracing timbers 39.

The mechanism supporting embodying our, present invention will now be described. By reference to Figure 10, it will be seen that the perimeter of the finished head 40 is provided with the holes 41 for the reception of the nailsor screws 41 which secure the slats 42 to the head. After shaping the perimeter of the head 40 polygonal and boring the lateral nail holes 43 and mortise openings 44- while in the head clamp 10, the air chuck control lever 13 is manipulated to open the head clamp the head 40. The head is then removed and. placed upon the plate 45, which is carried by the vertically disposed shaft 46, the shaft 46 being carried by the bearing 17 10 and thereby release mounted on the upper timber 3t and the bearing 48 mounted on the lower timber3 l of t-hesupporting frame. The plate is provided with a set screw 4-9 which permits of adjustment on the shaft 46, should a head of difi'erent thickness be used. The upper cross members 37 of the frame support two laterallyextending cross timbers 50 and .50 upon which is carried the bed 52.

:As shown in Figures 6 and 7, the bed member .52 is provided with 'a plurality of side lugs 51, which seat upon the cross timbers: 50 and 50, and which are secured thereto by means of in Figure 8, a plate 55, having a dovctailed seat, is provided in the upper portion of the bed 52 and is adapted to reciprocate therein'by means of a mechanism which will be hereinafter described. The gib 56 provides for an adjustment of this plate in its bearings by means of the screws 57. Formed. upon the plate 55, such as by castinglii'it egral,welding, or, otherwise, is the boring box 58 in which are disposed the drills 59.: The box 58 comprises the member 59, which is rigidly or otherwise secured to the plate 55, the removable intermediate member 60 and the removable top member til. The drills 59 are removably secured to the stocks 62 by means of the set screws 63'. The members 59 and 60 areprovidcd with bearings for the shafts .63, which have scmicircular bearing sleeves 64 therein; At the otheroropposite end of the bit-shaft 63 the gearsfi l are CllSpOSBClyWlllCll'llilVO meshing engagement with the driving-gear 65. This gear 65 is carried by a shaft-66, also disposed within the housing'58, and is provided with a similar bearing between the intermediate member 60. and top member 61. The opposite end projects'through the housing 50, be.- ingrefcluced having a nut 67 threading thereonto prevent lateral displacement. A driving pulley 68, mounted on the reduced the bolts 54-. As shown i gear end of the shaft 66, is

driven by any suitable ,source of power (not shown) through the belt 69. Adjustment of the bearings for the bit shafts 63 is secured through the screws 70, which secure the in termediate members 60 to their rigid member 59. Likewise, adjustment of the driving shaft 66 is secured by the screws 71 which secures the member 61 to the intermediate member 60.

The bed 52 is of such length that the guideway formed therein for reception of the reciprocating plate 55 allows for movement sufiicient to permit the plate 55 to advance the drill'bits 59 toward the head 40 lying on the retaining plate to perform a drilling operation in the perimeter. course, it is to be understood that this drilling or boring operation does not necessarily have to be performed in the perimeter of the head 40, or does thehead necessarily have to be of a disk formation, as the essence of this invention lies in the general arrangement of the mechanism for performing this operation. v i i As clearly shown in Figure 2 the cross timbers and 50 are cut away at their upper portions as indicated at 71, so as to permit clearance forthe connecting rod 72.

The connecting rod 7 2 is disposed in the lower recess portion of the bed 52, and has connection at one end with the plate and at the other end an eccentric connection with the disk mounted on the upper end of the shaft 76; A similar disk: 77 is also carried on the shaft 7 6 directly belowthe disk 75, and upon each of these disks are formed the cam 7 8. The shaft 7 6 is supported upon the cross timbers 37 and 38 by means of the bearings 79. At the lower endof this shaft a third disk or plate-80 is carried, which also has a cam or projection 81 thereon. The counter shaft 30 drivesthe shaft. 76 through the pulley 82 and belt83, having a slip drive with the pulley 84. A

' The cam 7 8 is periodically engaged by a lever 85 fulcrumed to the member 39 at 86. The lower end of the lever 85 carries a bar 87 bolted thereto which has secured at the free end thereof the roller 88 engaged by the cam 81. The bar 87 retains one end of the spring 89 while the otherend isheld by a rod 90 rigidly secured in the supporting leg The spring 89 functions to keep the upper end of the lever 85 out of engagement with the cams 7 8 of the plates 75 and 77 and the roller 88 onthe lowerend of the lever in engagement withthecam 81 of the plate 80. .Directly above the bearing 47 a plate 91, having a plurality of vperipheral slots 92' therein, iscarried on the shaft 46. Referring to: Fig. 3 there is a slot for each face of the polygonal head-40, or mother words, for each slat of the rotary cylinder, except that portion of the plate designated 93.

to the succeeding slot.

the nail holes 41, as the cover of the cylinder is removable and hence the cover slats are not secured to the head. Each slot 92 is adapted to be engaged periodically by the lever85, so that the reciprocating plate 55 may be allowed to advance toward the head on the plate 45, and consequently permit the bits 59 to bore the holes 41 in the faces '95.

The shaft 46 carrying the plate 45 has a driving connection similar to that for the shaft 76. that is, a belt 96 is trained over the pulley-82 and has a slip connection with, the

pulley 97.

The operationofthis mechanism will be evident from the following: The spring 89 constantly tends to keep the lever 85 in engagement with the slots92. As the shaft 76 rotates in the direction of the arrow, as shown in Figures 3 and 4, the cam 81 en gages the roller 88 and consequently came the lower endof the lever 85 outwardly against the tension of the spring 89. The lever 85 is then thrown out of engagement with the slot 92 and into engagement with the projections 7 8 on the plates 75and 77, and thus the shaft 76 is locked against further rotation. .The cam 81 is so timed in its performance that the tip or the peak of its dwell just clears the roller 88 as the shaft 7 6 is locked against rotation. The slip drive between the belt 96 and pulley 97 then picksfup and the shaft 46 rotates in the direction of the arrow, shown in Figure 3, The'inner edge of the lever 85 bearing, upon the periphery of the plate 91 immediately slips into engagement with this slot by means of the. spring 89. The shaft 76 then rotates again until. the cam 81 engages the roller 88 on its next revolution. During this period of rota- T1011, the eccentric action of the connecting rod 72 and disk 7 5 bring the boring bits 69 into boring operation with the adjacent peripheral face 95.

This operation is continually repeated until'theportion 93 of the perimeter of the plate 91 advances into engagement with the lever 85, whence the shaft 76 is held against rotation for algreater period of time.

T he shaft 46 rotates and carries the faces er. the head 40, on which the slats lie, past the boring box. 58 without perinittingthe boring operation; to he performed.

As the boring'box 58 approaches the head 40 on the plate 45 its movement is unim' peded until the bits 59 engage the face 95, when the movement is retarded slightly, due to the resistance the bits 59 ofler at the initial engagement. The shaft 76. continues to rotate, which consequently carriesthe conits pa'th of movement.

"Due, to the elliptical shaped head, which. I

also contemplate working on, and which provides: faces 95. .having unequal radii, the strokeof the boring mechanism should preferablyyaryin lengthi Toaccomplish this a resilient connection is 'interposed in the connectingrod 102 is guided formotion in the: spring housing, 99 the guide nut 101 (which runs into and closes oif theouter end :of the. housingi99, The end of the connectingrod section 102 ispr VidedWith a collar 10 3 and co nfinedbetween .this collar. and

guide 1111110711 is afcompression spring 104.

'As theshaft v 76rotates, the portion. 192 .of

the'c'onneotingrod .72 follows in .an eccentric 59 initially engages the perimeter of the head 40, the head; 10.3 at the opposite end path about thedislr'ib, and when the drills I compresses the spring104 till the tension is sufiic-ient-to overcome the resistance of the drills-59, which is .ofiered at its initial op 'erationl. so long as the drive is positive, as it is in thiscase, such a resilient connection obviates any undue strain upon the drill 59 or other, operating elements.

In an'elliptical head, the faces having the lesser radii will'require boring box 58 to ad- .vance .the drills a greater distance in order that-the holes drilled will be of the desired I depth; and vice versa In the: latter in-' f the eccentric spring 104;. ,Th'us a variation 7 of the stroke is obtained.

stance where f the faces presented have the greater. radius, the shoulders of stocks 62 abut the peripheryof head afterbits 59 have cut a maximum distance inftlie head. The remaining part, of the stroke made by connection is taken up by the While we have described our invention in 7 detail in this particular embodiment, it is clearly apparent that the features of. our invention may be incorporated in various and many ways .in. machines performing analogous and also similarfunctions; that the timingelement employed for permitting the head or, .product of the machine to revolve andpresentzia new. portion on the perimeter,

or other part thereof, While the boring mechanismlis substantially held from movement, maybe altered considerably and yet begiwithin, the essence of our invention; and hence, we .do notintenol tolimit ourselves to the particular construction and arrangement J shown. p

y 'We claim zj.

1 In;coInbination, a shaft, means ens id Y shaft for retaining'a blank, drivmg means in the length anism for operating on the work on said for; said shaft, a locking element on said shaft for preventing rotation thereof during certain'periods of operation, an arm for engaging said locking element, said arm having a roller at the, lower end thereof, a

second shaft, means for driving said second shaft, boring mechanism, means for advancmg the latter operated by said second shaft,

a second locking element on said second cammeans on the work moving shaft to predetermine a non-uniform sequence. of displacements each less than a complete revolution. 7

3.. In combination, a work moving shaft, mechanism for performing an operation on a pieceof work moved by said shaft,- a shaft for moving saidmechanism into and out of engagementwithsaid work, a slip-friction drive for each shaft, and an escapement permitting only one of s'aid'shafts to rotate and stopping each shaftbefore the other shaft can start. j

4. In combination, means for shifting a piece of work, mechanism for performing an operation on said work, means for moving said mechanism into and out of operative engagement with said work, and means controlled by said work shifting means for preventing operationof said mechanism movingmeans during movements ofsaid work through .varying displacements between sucoessive operations of said mechanism.

5. In combination, a work support, mochsupport, means for shifting; said support, an escapement permitting actuation of only one of said shifting means and operating mechanismat a time, said'escapement normally tending to start said operating means, and a pattern operated by said \vork'support to prevent movement of the escapement until after a predetermined movement of saidsupp'ort. V ,6. Ini'combination, a. rotatable work carrying shaft, a11'indek plate on said shaft, said index 'plate'having irregularities of" contour irregularly spaced, and start and stop mechanism controlled by registry. with said irregularities of contour for periodically performing an operation onsaid work.

7; In .combination,; a rotatable work carryingshaft, an index plate on said shaft, said index plate having irregularities of contour, and start and stop mechanism controlled by registry With said irregularities of contour for periodically performing an operation on said Work.

8. In combination, a rotatable Work support, mechanism for performing an operation on a piece of Work on said support, connections for intermittently and alternately shifting said support through a constant 1 predetermined angle and then performing an operation thereon, and which terminate the series of equal angular displacements before said Work support has made a complete revolution and complete the revolution Without further operations.

In Witness whereof We hereunto subscribe our names this 17th day of June, 1920.

CARL F. ANDERSON, LESTER W. KNAPP. 

